Assignee
DONN INC
US·52 granted patents·1,844 citations·filing 1978–1987
Top patents by PatentIndex Score
52 records- 0196US4397127AExtendable stud for partition walls or the likeDONN INC·Filed 1980·Granted Aug 9, 1983·105 cites·23 claims
- 0290US4640064ASuspension ceiling system combining snap-up pans and lay-in panelsDONN INC·Filed 1985·Granted Feb 3, 1987·95 cites·14 claims
- 0389US4206578AGrid tee for suspension ceilings or the likeDONN INC·Filed 1978·Granted Jun 10, 1980·63 cites·26 claims
- 0488US4642418AUtility module for walls and the likeDONN INC·Filed 1985·Granted Feb 10, 1987·66 cites·12 claims
- 0588US4578910AElevated floor panel systemDONN INC·Filed 1984·Granted Apr 1, 1986·83 cites·16 claims
- 0687US4535580AScrew slot runner systemDONN INC·Filed 1983·Granted Aug 20, 1985·63 cites·10 claims
- 0785US4443991ADemountable partition structureDONN INC·Filed 1980·Granted Apr 24, 1984·58 cites·6 claims
- 0884US4621468AConcrete metal-backed access floor panelDONN INC·Filed 1984·Granted Nov 11, 1986·54 cites·13 claims
- 0980US4696142ASuspension ceiling with snap-up panelsDONN INC·Filed 1986·Granted Sep 29, 1987·51 cites·9 claims
- 1080US4407011AIntegrated lighting systems for suspended ceilings or the likeDONN INC·Filed 1980·Granted Sep 27, 1983·35 cites·17 claims
- 1179US4603229AUtility module for wallsDONN INC·Filed 1985·Granted Jul 29, 1986·42 cites·11 claims
- 1279US4492066ASuspension ceiling grid systemDONN INC·Filed 1983·Granted Jan 8, 1985·41 cites·28 claims
- 1378US4679375ASuspension ceiling grid system with narrow-faced gridDONN INC·Filed 1983·Granted Jul 14, 1987·44 cites·22 claims
- 1476US4744188ASuspended island ceiling systemDONN INC·Filed 1987·Granted May 17, 1988·65 cites·12 claims
- 1576US4520609AGrid tee for suspension ceilings or the likeDONN INC·Filed 1982·Granted Jun 4, 1985·48 cites·3 claims
- 1675US4646506ALinear panel ceilings and the likeDONN INC·Filed 1985·Granted Mar 3, 1987·50 cites·10 claims
- 1775US4394794AMetal fastening system and methodDONN INC·Filed 1981·Granted Jul 26, 1983·28 cites·15 claims
- 1874US4625491AElevated floor panel with integral trimDONN INC·Filed 1986·Granted Dec 2, 1986·55 cites·13 claims
- 1974US4583340AFixture support clip for suspension ceiling grid systemsDONN INC·Filed 1984·Granted Apr 22, 1986·34 cites·19 claims
- 2073US4611453ASuspension ceiling grid connectorsDONN INC·Filed 1985·Granted Sep 16, 1986·30 cites·12 claims
- 2172US4505083ADelineated ceiling grid in suspended ceilingDONN INC·Filed 1982·Granted Mar 19, 1985·35 cites·9 claims
- 2271US4546584AWall panel system providing resilient jointsDONN INC·Filed 1983·Granted Oct 15, 1985·39 cites·14 claims
- 2371US4545170AExpanded metal productsDONN INC·Filed 1983·Granted Oct 8, 1985·34 cites·34 claims
- 2470US4817357ASuspension ceiling grid teeDONN INC·Filed 1987·Granted Apr 4, 1989·40 cites·10 claims
- 2568US4648230ALocking connection for suspension ceiling grid systemsDONN INC·Filed 1985·Granted Mar 10, 1987·36 cites·9 claims
- 2668US4413457ACheckered wall or ceiling systemDONN INC·Filed 1981·Granted Nov 8, 1983·31 cites·15 claims
- 2766US4408427AFraming system for demountable walls or the likeDONN INC·Filed 1980·Granted Oct 11, 1983·42 cites·19 claims
- 2865US4573304AHoneycomb floor panel and the likeDONN INC·Filed 1983·Granted Mar 4, 1986·31 cites·13 claims
- 2964US4770018AMethod for producing cold roll-formed structuresDONN INC·Filed 1987·Granted Sep 13, 1988·30 cites·31 claims
- 3064US4574555AAccess floor panel with edge trimDONN INC·Filed 1983·Granted Mar 11, 1986·25 cites·4 claims
- 3164US4574547AWindow system for demountable wallsDONN INC·Filed 1984·Granted Mar 11, 1986·24 cites·10 claims
- 3264US4531340ABeam splice for supporting grid systemsDONN INC·Filed 1982·Granted Jul 30, 1985·24 cites·9 claims
- 3364US4499697ASuspended ceiling with removable tee sectionsDONN INC·Filed 1981·Granted Feb 19, 1985·24 cites·9 claims
- 3464US4470239ASuspended ceiling grid systemDONN INC·Filed 1980·Granted Sep 11, 1984·25 cites·11 claims
- 3562US4485605ASuspension ceiling grid with removable grid membersDONN INC·Filed 1981·Granted Dec 4, 1984·23 cites·11 claims
- 3660US4660348ALinear metal ceiling and wall systemDONN INC·Filed 1984·Granted Apr 28, 1987·21 cites·5 claims
- 3757US4594833AHoneycomb floor panel and the likeDONN INC·Filed 1985·Granted Jun 17, 1986·16 cites·5 claims
- 3855US4598521ASuspension ceiling grid with end connectorDONN INC·Filed 1984·Granted Jul 8, 1986·24 cites·12 claims
- 3953US4628656ADemountable wall panelDONN INC·Filed 1985·Granted Dec 16, 1986·22 cites·9 claims
- 4053US4598514ASuspension ceiling grid runner with expansion meansDONN INC·Filed 1984·Granted Jul 8, 1986·14 cites·17 claims
- 4152US4484426ASupport system for landscape screensDONN INC·Filed 1981·Granted Nov 27, 1984·22 cites·19 claims
- 4251US4689870AMethod of making honeycomb floor panelDONN INC·Filed 1986·Granted Sep 1, 1987·17 cites·3 claims
- 4351US4484428ASuspended ceiling grid systemDONN INC·Filed 1982·Granted Nov 27, 1984·15 cites·12 claims
- 4449US4426824AFloor panel and method of making sameDONN INC·Filed 1981·Granted Jan 24, 1984·21 cites·8 claims
- 4546US4779394AConnector for suspension ceiling gridDONN INC·Filed 1987·Granted Oct 25, 1988·16 cites·26 claims
- 4645US4621474AGrid connectors for suspension ceilingDONN INC·Filed 1985·Granted Nov 11, 1986·17 cites·11 claims
- 4744US4514945AWindow insulating systemDONN INC·Filed 1981·Granted May 7, 1985·12 cites·16 claims
- 4843US4257206AFire rated ceilingDONN INC·Filed 1978·Granted Mar 24, 1981·11 cites·5 claims
- 4942US4671832AAccess floor panel with edge trimDONN INC·Filed 1985·Granted Jun 9, 1987·12 cites·13 claims
- 5042US4312158AFire-resistant demountable partition structureDONN INC·Filed 1979·Granted Jan 26, 1982·13 cites·17 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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